scanlan



G. H. SCANLAN.

TRACOH FDHWARD MH) REVERSE GEARNG.

APPLlcAmN mit: uw! l5. ma.

1,359, 109. Pawntd Nov. 16, 1920.

`3 SHEETSSHEET I- WITNESSES G. H, SCANLAN.

TRACTUH FORWARD ANMEEVEHSE (BEARING.

APFLlCAION FILM? MAY l5, X929.

Patented Nov. 16, 1920.

3 SHEETS-SHEET 2.

A TTUHNE YS G. He SCANLAN. TRACTOR FUHWARB AND REVERSE GEAHING.vWPLIQM'IGR FILED MAYl, i919.

1,359, 109. Ptented Nov. 16, 1920.

3 SHEETS-SHEET 3.

Wf/VESSES /f/VENTUR ATTORNEYS UNITED .STATES GEORGE H. SCANLAN, 0F NEWYORK, N. Y

TRACTOR FORWARD AND REVERSE GEARING.

Specification of Letters Patent.

Patented ov. 16. 1920.

Application filed May 215,4 191%. Serial No. 297,299.

To all 'whom it may crmccm A Be it known that I, Gnonon H. SGANLAN, acitizen of the United States, and a resident of the city of New Yorkborough of Manhattan, in the county and rtate of New York, have inventeda new and Improved Tractor .Forward .and Reverse Gearing, of which thefollowing isa full, clear, and exact description.

This invention relates to tractors and has for an object to provide animproved construction whereby tlie tractor may be reversed at an time.

Another o )ject of the invention is to provide a tractor in which a simjle effective revcrsing mechanism is rovi ed which will be extremelysmall an( simple in construction so as not to increase appreciably thesize of the structure.

A still further object of the invention is to provide a structure inwhich the Wheels may be adjusted so as to raise and lower the casing-tocomply with different requirements for general use.

Another object of the invention is to proF vide a construction whichwill not only permit an up and down adjustment of the casing in respectto the bull wheels and reversing mechanism, but also means whereby thebull wheels may be spaced different dis tances apart and yet remainconnected up with the power.

In the accompanying drawings:

Figure 1 is a side view of a tractor embodying the invention, certainparts being broken away for illustrating a certain part of the drivingmechanism.

F ig. 2 is a detail fragmentary side view showing a plurality of socketsarranged in an enlargement on the casing.

Fig. 3 is a horizontal section through the structure shown in Fig. 1. y

Fig. 4 is a sectional view through Fig. 3v on line 44.

Rcferrin to the accompanying drawings bynumeralgs, 1 indicates a casingwhich is provided with an enlargement 2 on each side as shown in F ig.3, which is. provided with a number of apertures 3, the centers of theseapertures being positioned on an are struck from the center of thedriving shaft 4. Driving shaft 4 is journaled in suitable bearings inthe casing 1 and carries the driving pinions 5 and 6 at its ends. Thisshaft is driven by a suitable internal combustion engine 7 ofpreferablythetour- Imittedthereto for h cycle typenwhich may have one or morecylinders. flic engin 7 has the connecting rod 8 thereof journaled onthe pin 9 which connects the fly wheels l() and 11. These lyiwheels arerigidly secured to the shafts 12 and lfl, shaft 12 being merely a, stubshaft for holding the fly wheel l() in place, while shaft 13 acts in thesaine capacity for ily wheel l1 and also carries the driving gear 14.',`'As the engine rotates the shaft 13 will actas a power shaft andthe gear14 will continually rotate and also continuall'Y rotate the .pinion 15and gear wheel f6 as they continually mesh therewith. An auxillary orreversing gear wheel 17 continually meshes with idler l5 so that it alsorotates continually during the operation'of the en gine. The gear wheel`16 is 'loosely mounted on the shaft' 4, while the auxiliary gear wheel17 is loosely mounted on thehub lot the clutch member 18, which clutchmember is keyed or otherwise `rigidly secured to shaft 4. It will beobserved that thisfclutch member has a clutch surface i19 'coacting withthe clutching surface 20 of auxiliary is pressed against the clutchmember 18 a clutcliingaction will take place. In order to canse thisaction a clutch-shoe 21 having a clutch surface 22 is moved over untilthe4 clutch surface en Tages the surface 23 of gear wheel 17. lfhen theclutch shoe 21 presses against the` gear wheel 17 suiiiciently said gearand the clutch member 18 together with the shoe 21 will all rotatetogether and rear wheel 17 so that-.when the gear wheel consequentlywill rotate shaftt. It' is to i be understood that the clutch shoe 2l issplincd on to the shaft 4 and is allowed to freely slide on the shaftthough a `spring 24 is provided for moving the clutch shoe toward thegear wheel 17 while a suitable yoke 25 engages the groove 26 in the hubof the shoe 21 so that gower may be transo din-g the clutch-shoe out ofengagement with wheel 17. The yoke" 25 is connected with an arm 2Tpivotally mounted at 28, said arm having a projection 29 rigidly securedthereto` which: armlis pivotally` connect-odio the cross har 30. A bellcrank lever $31 is pivolally connected to the bar 30 and is in turnpivotallv mounted at 32 so that whenever the rod 3:3 pushed or pulledthe barili) is; moved longi-` tudinally. The connection at 32 ispreferably somewhat elongated so as 'oitake care of the movement of the`parte.

-When-the parte are in the 'position shown. n

huh of the elutehehoe 35 for` giving said clutch shoe a tendenoy toalways remain in engagement with the gear'nwhel i6. This clutqh-shoemoved out, of: engagement or held positively in engagement hy thevoirieA 37 having an extension 4fitting into the s groove 38, said yokebeing operated hy an arni 39 ,provided with an extension 40, said armbeing pivoted at fil on the easing, l The extension l() is pivotallvconnected With the bar 30 so that the uluteh 35 Willhe thrown out ofengagement when olutoh 2l is thrown in. ,iv-nlji'rfsuitahlo ratoh mayloe Connected with the rod 33 so as to look either clutch Shoe inengagement with the respective Wheels lo and i7. It will he noted thatwhen the clutch 35 looked in engagement with wheel 16 the tractor ismovi i iol# wardljy and when the clutch Shoe 2l is ooked inongaggf-finent with the auxiliary gear wheel 17 the tractor ismovingvrearwardly on aoeount of the arrangementof the idler 15.Regardless ofV the direction of rotation of the shaft l power istransmitted therefrom through the pinions 5 and 6 to the. racks 42 andconneeted oi formed integral with the hull whe-els elli and 45. Thesehull wheels may he of any aizeor shape Without departing from the spiritol the invention and are each provided with a central hub i6 forreceiving thel respective shafts or axles 4T and 48; Asthe hull'vgheelsand associ,- ated parts are. identical the deseriptionof one Willapplyt'o both. Frein Fig. l will.

be Vseen that the bull Wheel may be readily adjusted so ast to raiseandlower the easing 1. This Iis don'e by having the axle 'or shaft48'tti1i`g into any of the openings 3 on the enlargement Q'otheoasing l.From Figs. 1 and2 it 'willA Vbeiioted thatthe openings 3 are arfan'gedonthe are of a circle, the center of which is the henter of shaft/l.

"It isgvoffeoiirsel, evident that other meaneof .mntfshown in -fiiiynio-pending" appli'ation.

a reverse direction.

L out' 'departing from tute@ atfiiny' tithe so'i'lit thelhiiil wheelsmayyhe spread :mart or brought close togetherado'ling to the`circumstances and l1e-deeigea the parma using the-tractor.

Preferably the shaft 4 1e .made hollow and. ii,- providod with a`teleeeopingon sliding auxiliary Shaft 4 at each end't'o 'vhiih the gearWheelsv falid are rigirlhy secured, said auxiliary shaft heiligsplint-ad to shaft 4 and looked in anyfdi-isired position hyA the'. respeetive aetsorews 4". A `Similar arrangement could be provided on thevaxlesof shafts 477 and LR, liiutpre'ferably the7 are made as shown inFig. 3 of the drawing whereby the hull wheels may be moveintoward andfrom the oas-ing as deiifiidi' in addition each hull wheel isiirovidedWith an opening 50 whereby eitherof the shafts l2 and 13 may lieremoved'and longer shafts substituted, said longer Shafts extendingthrough the openings-5U and arranged to reveise a pulley so that thedevire maby he used as a power plant.

In operation. after the engine hasjheen started the traotor may heguidedbjfthe handler: 49 over any desired course. Tofapply the power sothat the tractor4 Willfiovo forwardly the rod 3R is pushed towarf thetractor whereupon the clutch member is thrown into engagement with the4.""ear wheel lf3 and the engine will then begin to drive the hullWheels'in a. forward direction. lf, for anireaeon, it is desired to stopthe traftor Without stopping theengine, rod is pulled until clutch 35 ismerely disengagfed. if it should oe desired to eaoee the tractm' to moverearwardl the pull on rod 33 ie Continued until the clutch 2l. is throwninto engagement with the auxiliary gear Wheel i 'whereupon the enginewill act thrrmgh the idler '15 amlaasoeiate parte for rotating shaft 4.in a reverse Adire'otion and consequently for rotating the hull Wheelsin From this it vvill be Seen that hy the operation oi? one rld thetractor may be stopped 'erica-usedto` move in teither direction.- It is,'of course, evident plow, cu1ti'vat-or,` or any desiredldevice'withthespirit ofthg @miem tion, w

`Vifhat I claim is: i i I i Il.. In a forward and reversin Igeaiifoiitlie, i,

`r'nounted on Said lihaftf :in auniliaiyeluto adapted to he hrought,into Contact with @aid auxiliary Vdriving geai'; a power ohaft, a

niasterigear secured tosaid power shaft and rotated theliiehjygsaidmaster gear continually 'meshing with the first mentioned :driving

